Apparatus for combined levelling coal and removing coke from one side of horizontal coking chamber oven batteries



July 14, 1959 w. MALKoMEs 1 2,894,649

APPARATUS FOR COMBINED LEVELLING-COAL AND REMOVING COKE FROM ONE SIDE OF HORIZONTAL COKING CHAMBER OVEN BATTERIES ned oct. 27, 1955 REMO d fr: q, Mmm H IN VEN TOR 41.7112 (vez. Komvf.&

Ued Se@ Patent APPARATUS FOR COMBINED LEVELLING' COAL AND REMovlNG COKE FROM ONE smi;v OF ITQIQRIIEZSONTAL OOKING CHAMBER OVEN'. BAT- Walter Malkomes, Hattingem. Germany, assignon. by lmesne assignments, to Koppers Company, inc., Pitts'- burgh, Pa., a corporation 'of Delaware Application October 27, 1955, Serial No.` '543,217 4'Claims. (Cl. 214-23) The invention relates to an apparatus for combined removing of coke from and levelling the next .charge of coalin horizontal coking chamber ovens, which` apH paratus is movably arranged'solely on the coke side of the oven battery and draws the coke out into a quenching.

car which moves on the same coke side of the battery by means of the same operating mechanism thatfis used to level the next coal charge.

In coke oven batteries with horizontal coking chambers vfor the production of gas and coke, the modern procedure requires separate mechanism whereby the coke is pushed by means of a pusher head on a ram rod or b-arcarried by a pusher machine movable on the so-called pusher machine side of-the oven battery from one to the others of the oven chambers for pushing the coke towardsthe opposite, so-called coke side of the battery. The coke is pushed through a coke guide means movable from..

chamber to chamber on an accessible'platfornr of the coke side of the oven battery into a quenching car also movable along the coke side of the Oven battery, by means of which the coke, after being quenched under a quenching tower is brought to an inclined evaporatingramp. The. bar for levelling'tbe next coal charge is alsov mounted on the pusher machine movable. onthe pusher machine side of the colte oven battery because the latter also has, as a result of. the long pusher ram lengthrequired for pushingthe coke from the lO-lZ meter long oven chamber, the same considerablylarge size for guiding and driving the leveler bar aswell as the pusher ram sucha long distance; Accordingly, a space requirement of about.20.. meters and more from the outer edge of the oven chamber to the end of the withdrawn. pusher ram and a track width for the wheels of about S-lOmeters are necessary, as wellas separate mechanism for actuating and driving each separately.

It happens that as a result of-present day advancefin structures or existing apparatus of these batteries, the tolerance or allowance for. economy, maintenance and the space for housing a coke oven battery audits ape purtenancesis very limited. By the present invention a combined solution of the space problem, the maintenance requirements and economy is provided considerably reducing the space required for housing the actual coke pusher machine and completely releasing in-this space for other purposes on the pusher machine side,v without omitting the actual pushing from thepusher side of the entire coke cakev throughv the usualv guide means into a quenching. car on thewopposite side of'the battery while atthe same time reducing the maintenance requirements and cost of operation of the pushing; and levelling apparatus. Y

It is already known to arrange, instead of the standard coke pusher machine on the coke side, ani apparatus for removing coke 'from the horizontal coking lchamber consistingof an apparatuszmovable on the coke side and bearingay scraper band or pusher head .pulled by a chain by means of a windlassto push out the coke.. The scraper band is raised and loweredV and is thinly adjusted Patented July 14,A 1959 ,ice

2. to-bemovedin the oven chamber to the other end ofthe same. Pushing the coke from the oven chamber byl means of such a. known apparatus is time consuming and.

head in coaction .which with the coal levelling rod but.

arranged to extend through and beyond the oven. charm ber at the height of the top. gas collecting space This. levelling. rod isvconstructed according to the invention so that, after removal of the doors and-slidingrthe rod.

throughv the gas collecting. spaceabove the. coke cake'to the. opposite side of .the.battery, it is connected to the. pusher head to withdraw the head to exert the pushing. force on the coke cake. topushthe finished cokeV cake from the oven chamberbymeans of a detachable pusher head.`

According. to the invention a` separate transport frame orcarriagecarryingthe detached pusher head is preferably arranged on the pusher side-of the battery opposite the coke side. Furthermore,the pusher head and the terminal endofthelevelling. rod are so constructed f9.1" their. interconnection that .on sliding the rod through the oven chamber the pusher head is then coupled with the levelling rod.

In this wayit is possible to completely withdraw the coke cake from the oven chamber from'thecoke side without-danger of breaking'tbe coke cake by the same lever andoperating mechanismand motive means for both the levellingv and the pushing. On-the pusher side of the battery opposite the coke' side there is now` room for housingnother' apparatus appertaining to the oven battery. For. example, coal 0r' coke can bev stored in this space, or apparatus for treating the gas now can be installed there the maintenance requirements are less, and the'nurnber Qf operating. parts/greatly reduced.l

A further object'of.- the-inventionis toY construct' the terminal end of( the coal leveler rod for connectionv there` With by a lever hilgabl'el t'wardsfthe' bottom andro hold this hingeable pusher. head lever part to the' leveler rod, during the retractive passage of. the leveler rod through, the gas collecting space of the oven chamber, in rigid connection withI the leveler rod, and further to fasten andif necessary, to rein-force this pusher. head to the terminal part of the leveler rod, after slidingthe leveler rod"y throughrthe'oven chamber-,in such manner that the pusher headv operates.V asa rm pusher. head against the to-be-pushed. coke cake.

The-pusher head for pushingthe coke is arranged, in one-embodiment Of the invention on a transport frame movable. in front of the oven battery .on a bench nearI tbe/loven soles onthe side of the battery opposite the cokef-sidefand this.' transport ,frame isalso preferablyfcone nected with` amovable door. lifting means forthe doors on the pusher side `of the'battery.

Furthermore, the coke guideirneans that is to'be brought to the roven chamber Orr-the ycoke sideis preferably con; neeted.. with. ythe pusher. head extracting. machine for movementffrom chamber.A to chamber therewith, aswell. as the door lifting device for the doors. on thisy side" of the battery..

The combined .arrangement for operating the coal level--V ling and coke withdrawal means. from theY coke side makes possible a substantial saving of operating personin known manner by remote control in such manner that the remote control is effected from the service station of the coal levelling and coke extracting operating machine station from which the slow moving of the quenching car relative to the extractor head can be more readily watched during the extraction of the coke. In this way simultaneously with completion of the coke pushing, the operator on the machine for coke extracting can also push a button to start the quenching car to the coke quenching tower and a switch, which is operated on the movement of the quenching car, then may be set to start the quenching of the coke and again stop it by means of a time relay. A By means of the apparatus arranged and constructed according to the invention for such operation in extracting coke, the usual safety devices can also be omitted which frequently are provided for the purpose of providing assurance of alignment in the same position of the coke pusher machine on the machine side and the coke guide car and quenching car on the coke side, and which requires a more or less complicated construction and considerable expense and maintenance.

In case of an instance of a door of the to-be-emptied oven chamber being unopened on the pusher side of the battery opposite the coke side, in order to assure that the coke extracting leveler rod does not hit against the door while sliding it through any of the oven chambers, the doors on the pusher side of the battery are provided with a self-sealing inclined flap which is held in the closed sealed position by gravity as a result of its own weight or augmented by additional weights, or even by spring pressure, such doors are opened by the thrust of the extractor rod on pushing the crown space whenever the oven chamber door has inadvertently not been lifted. I A further object of the invention is to arrange a drive rack for the leveler rod laterally on its side face in order to keep the teeth free of coke particles, such as in H. Koppers Patent 2,354,030.

In order to avoid the danger of bending or sagging of the leveler rod in the oven chambers, the latter can be provided with lateral runners by which it is guided on projections and indentations on the chamber walls, as is known in other patents of Koppers Company, Inc. for levelling rods for levelling the coal charge of the oven chamber.

The invention is illustrated in the best mode known at this time in the accompanying drawings wherein:

Fig. l is a vertical cross section through a coke oven battery;

Fig. 2 is a section on line II--II of Fig. l;

Fig. 3 is another sectional view showing the doors as they appear at the horizontal ends of the ovens;

Fig. 4 is a perspective and more detailed view of lthe pusher head and part of its transporting carriage;

Fig. 5 is an end elevational view of the pusher head as in Fig. 4.

In the illustration of the oven battery it is assumed that the coal charged into the oven chambers through charge holes 1 of the top 2 of the oven by means of a conventional charging car is coked and the so-formed coke cake must be pushed horizontally out of the oven chambers. For this purpose a transport machine 5 is movably arranged by means of wheels 6 on tracks 7 along the oven battery on the coke side 4. The machine is portably mounted and spans a coke quenching car 8 which is also movable along the coke side of the oven battery and is provided with inclined bottom 9, and the machine also spans a stationary coke ramp, which is within range of the inclined bottom 9, and also spans a channel 11 connected with the ramp 10 and provided with conveyor belt 12.

On the machine 5 there is installed on rolls 13 a coal leveler rod 14 which has a lateral rack 14 which is driven by means of a drive 14 as in said H. Koppers Patent 2,354,030. In the drawing the combined coal leveler and pusher head leveler r'od 14 is represented in the position in which it ha's been moved through the usual gas collecting space 15zof oven chamber 3 in which it reciprocates for coal levelling as common in this art, with the leveler bar supported by runners on a ledge; connoted by the straight line at the level of the gas space,Y 15 in Fig. 3.

A coke guide means 16 consisting of the conventional two vertical side walls is connected with the combined coal leveler and coke extracting head bar transporting machine 5. The coke guide means 16, 0r its bottom 17, can be moved closer alongside the buckstays 18 past the oven vchambers in order to assure a satisfactory transfer of the coke cake, as conventional. v

A pusher head transporting frame or carriage 19 is movably arranged on the pusher side of the battery 4 by means of Wheels 20 on tracks 21 of the accessible platform 22 which frame 19 is preferably associated with the door lifting device as conventional, and hence not shown in the drawing, for the doors on that side of the battery, and supports a pusher head 23 such as is conven tional and necessary for pushing out the coke cake in modern practice. The pusher head 23 is movably in`- stalled in guide means 24 of the transporting frame 19 by means of grooves and connected with rod 14 by a forked connection Z6. Before sliding the rod 14 in the gas collecting space 15 of the oven chamber 3, the trans porting frame 19 is brought in front of the oven chamber so that the upper end of the pusher head which is either furcated, or passes into the opening of a furcated portion of the end of the leveler rod 14, is connected with the coal leveler rod 14 whereby the pusher head is coupled with the leveler rod and is supported by the late ter. In order to reinforce the pusher head somewhat theforked lever 26 is pivotally mounted in head 2.3 below the rod 14, as at 25, and turn on the pivot into an arcuate camlock 27 slot in the end of the combined leveler rod 14. The pusher head 23 has at the bottom a supporting roll 28 which rides on the floor of the oven chamber dure ing the operation of drawing back the leveler rod 14.

On retracting the leveler rod 14 the pusher head 23 by means of rollers 25 rides on the oor of the ovenI chamber while bearing against the coke cake and thus pushes the latter out through the coke guide means16 on the coke side into the quenching car 8 as it is slowly moved along the oven battery in normal manner trans-- versely of the guide 16 so that the coke is placed in as uniform layer as possible on the inclined bottom 9. The' coal leveler and pusher head bar transporting machine 5 is operated from a station 29 from which the quenching car S is also directed by a remote control device available there for moving the quenching car. Quenching car 8 is then moved to the quenching tower not shown inthe drawing where the coke is quenched and, after quench-l ing, is conveyed to coke ramp 10 and is discharged fro the latter onto conveyor belt 12.

After placing the coke cake in the quenching car the pusher head 23 is again immediately pushed back through the oven chamber to the transporting frame 19 and after uncoupling the coal leveler rod 14 is again withdrawn from the oven chamber for use in a next chamberr in sequence, as conventional.

I claim:

l. Apparatus for combined levelling coal charges in, and pushing the finished coke cakes out of, horizontal coking chambers comprising: lche combination with' a lbattery of horizontal high coking chambers that are very narrow relative to their height and are arranged side by side in a row each having removable doors at their opposite horizontal ends, and a means alongside the coke Vside of said battery for sequentially receiving at different positions alongside the ends of different coking cfham- -bers hot coke therefrom for quenching the coke, of a pusherV head carriage movable alongside the opposite pusher side of the battery into different positions for registry with each of said chambers sequentially for pushing coke therefrom, a pusher head mounted on said pusher head carriage and movable therefrom into the pusher end of the ovens through the pusher side doorways, a coal leveler bar carriage movable on a trackway alongside the coke side of the battery, in spanning relation to said means for receiving hot coke, into different positions for pulling coke from, and leveling of coal in said chambers sequentially, a coal leveler bar mounted for horizontal reciprocation on said leveler bar carriage at a level for insertion into and reciprocation into and out of each of said coking chambers at the level of the tops of said horizontal chambers with actuating means and driving means for said leveler bar on said leveler bar carriage, said leveler bar being extendable completely through said chambers to have its free terminal end emerge at .the pusher side of the battery, and means for detachably interconnecting the free terminal end of the leveler bar With the pusher head while the latter is on the pusher head carriage for pulling the pusher head completely off the carriage, and along the bottom of the coking chambers against the resistance of the coke cakes therein, for pushing the coke cakes out to the means for receiving hot coke on the opposite coke side of the battery by means of the same mechanism for levelling a new coal charge in said coking chambers.

2. Apparatus as claimed in claim 1, and in which the means for detachable connection of the leveler bar with the pusher head comprises a lever camlock connected to the end of the leveler rod and hinged to the pusher head with the hingable part fast to the intermediate part of the pusher head.

3. Apparatus according to claim 1 and in which a coke guide means is constituted as an integral part of the coal leveler bar carriage.

4. Apparatus according to claim 1 and in which the doors arranged on the pusher side of the battery opposite the coke side are provided near the gas collecting space with self-closing flaps which permit passage of the leveler bar in 'case the door is not opened.

References Cited in the file of this patent UNITED STATES PATENTS 472,115 Gates et a1. Apr. 15, 1892 1,378,782 Griin May 17, 1921 2,018,664 Fitz et a1 Oct. 29, 1935 2,354,030 Koppers July 18, 1944 FOREIGN PATENTS 511,243 France Sept. 20, 1920 

